A basic definition of a conformal coating is a coating, which is applied to the PCB surface and “conforms” to the various irregularities and contours of components at an even and consistent thickness. This of course means that, as an example, applying 50 microns of dry coating would be measured at 50 microns on flat sections, vertical sections, and corners of components. Since nearly all commercial conformal coatings are applied as liquids, it is in fact quite challenging if not impossible to apply a coating in a truly uniform thickness across all the areas.
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New silicone adhesive enables greater design freedom for consumer electronics, exhibits stable mechanical properties for greater device reliability
Dowsil has launched a neutral cure, solvent-free version of its best-selling 785 Sanitary Sealant, 785N.
Dymax Corporation expands its range of encapsulant materials with the introduction of Multi-Cure® 9037-F. The product cures in seconds upon exposure to UV/Visible light and has secondary heat cure for shadow areas caused by high-profile components on printed circuit boards.